On Fri, 26 Mar 2021 01:09:53 +0800 Fred Gao <fred.gao@xxxxxxxxx> wrote: > Before opregion version 2.0 VBT data is stored in opregion mailbox #4, > but when VBT data exceeds 6KB size and cannot be within mailbox #4 > then from opregion v2.0+, Extended VBT region, next to opregion is > used to hold the VBT data, so the total size will be opregion size plus > extended VBT region size. > > Since opregion v2.0 with physical host VBT address would not be > practically available for end user and guest can not directly access > host physical address, so it is not supported. > > Cc: Zhenyu Wang <zhenyuw@xxxxxxxxxxxxxxx> > Signed-off-by: Swee Yee Fonn <swee.yee.fonn@xxxxxxxxx> > Signed-off-by: Fred Gao <fred.gao@xxxxxxxxx> > --- > drivers/vfio/pci/vfio_pci_igd.c | 53 +++++++++++++++++++++++++++++++++ > 1 file changed, 53 insertions(+) Applied to vfio next branch for v5.13. Thanks, Alex
